Water and wastewater facilities require complex systems to perform efficiently while also meeting the challenge of rising energy costs. Electrical network designers and operators in WWTPs must ensure high-quality and reliable power for all critical processes along the water treatment cycle. The risk of power interruptions may cause public health issues or environmental damage and can create astronomical contamination costs in a competitive and cost-constrained water market, which is why Bender has developed solutions suitable for practically any system grounding arrangement, including resistance grounded electrical systems within the facility.
Why is Bender equipment needed to monitor VFDs?
Modern systems often employ variable frequency drives (VFDs), also referred to as adjustable speed drives (ASDs), that require special consideration to be adequately protected. These types of AC/DC loads are best protected by devices capable of monitoring all of the drive and load components across their entire operating frequency range to capture both AC and DC ground faults. Bender RCM and NGRM products provide this advanced level of protection and can be included in turnkey HRG packages. Transformer-isolated medium-voltage ASDs, and their driven loads, are ungrounded. Bender insulation monitors, such as iso685 series , should be used to detect ground faults on these critical and expensive systems. Their ability to detect very low fault current allows pre-warning of ground faults before they cause significant damage to capital equipment.
Bender solutions continue to offer priceless value to the end user by providing state-of-the-art technology and project support to ensure critical facilities can operate efficiently with reliable ground fault protection systems.